DE19950211C2 - Dispensing system for drinks - Google Patents

Description

The invention relates to a dispensing system for beverages, containing a beverage dispenser, a beverage preparation unit and at least one Peltier effect nut zende heat exchanger device in which a cold side and a warm side can be formed, and at least one Ge Drink dispenser, being in the beverage supply device and the Beverage preparation unit at least two strands of Ge soak leading lines are available, in the Ge Drink preparation unit at least one of the strands one Carbonation plant contains and a section of each passed both strands through the heat exchanger device which is a first block of material and a second mate rialblock, wherein in at least one of the material blocks in it that carry beverages and at least one temperature sensor can be integrated, switched on in a control or regulation system is bound, by means of which drinks are pre-selected as required given temperatures are adjustable.  

In the publication "Elektrophysik", pp. 434 to 435, VEB Ver Technik Berlin, 1970 describes that exploitation the Peltier heat to reach low temperatures (Heat pump - chiller) depends on three factors, näm Lich high differential thermal voltage, high electrical Conductivity and low thermal conductivity, the such together when choosing the materials used must meet the figure of merit that these three factors contains, should be as large as possible. The combination of P and N-semiconductors in the form of PN pairs bring in their connection end points or end areas a significantly higher quality number than the joints of combined metals with less different differential thermal voltage. To over a good heat exchanger device for cooling and air conditioning Maintaining and creating measurement systems is, according to recent Er knowledge of the use of P-, N-conductive material fen required. A single thermoelectric PN pair has two legs made of a P- and N-conductive material. A A large number of PN pairs can be used in a Peltier PN pair. Arrangement to an independent component-designed Peltier element can be summarized, the PN pairs elec trically in series, but thermally connected in parallel and between thermally conductive oppositely opposite Flat plates are introduced.

Such Peltier elements can, as from the publication DE 41 09 677 A1 is known, essentially from PN pairs and two thin, parallel planes facing each other slats, which have thermally conductive material and between which the respective PN pairs with their differences Lich temperature-variable end areas on the face plates are attached. Make the total of the PN pairs  represents a PN pair arrangement with a voltage source is connected via electrical lines.

Such separate, component-shaped Peltier elements are described in the publications EP 0 802 155 A1 and DE 196 14 754 C1 in the form of a Peltier element arrangement also in a heat exchanger shear device for drinking water dispensing systems and the basis of a method and a device for cooling and CO ₂ enrichment of drinking water in one pass. A power supply unit supplies the Peltier elements, which are attached to one of their plane plates outside of a metal block provided with an offset cooling device. The Peltier elements used are separate and separate building elements.

The dispensing system has a line of beverage pipelines in which a carbonation system with a CO ₂ injection device is integrated. The passage of the drinks takes place in a continuous process without intermediate storage, the heat exchanger device can also be arranged after the carbonation system in front of the tap. The Peltier element arrangement is located between a drinking water flow housing and a heat-absorbing Me tallblock, which contains lines, in particular pipes, in which a cooling, the waste heat transporting, branched from the main water flow cooling water flow is present, which are no longer used as a drink by its heating can and thus leads as waste water into a drain.

Another problem with the bar system is that the version applies only to drinking water, whereby the  Dispensing system directly to a drinking water supply network can be connected. Fruit juices or other fruit beverages could not be served as the Ver would be considerable.

A temperature control device with one of the operating modes: Cooling - heating / heating - cooling switchable Peltier Element arrangement is in the document DE 40 36 210 A1 described, the Peltier element arrangement between a heat absorbing metal block with protruding rip pungen and the cover plate one with zigzag-shaped, contiguous recesses and one entrance and one Output containing and as a temperature exchange body we Kenden metal plate is arranged on which a plate-shaped ge seal and a mounting plate are attached, wherein hereby a multi-part body is present.

A problem with the temperature control device is that with several strands in the recess plate along the Sealing plate the risk of an exchange between the different drinks and thus the taste qua lity is impaired.

At least one flat plate is the associated temperature control source having Peltier element provided that with one of its Flat plates on one side of the temperature exchange body is attached attached. The real tempe The exchange body is also an independent body component. With the Peltier elements attached to it liquids flowing through a block of material depending on the type and use of the liquid both cooled and also be warmed.  

Another dispensing system is from the document EP 0777 090 A2 known, which contains a container to which a ge meandering beverage line and coolant are assigned. There is at least one on one of the container wall surfaces commercially available, independent Peltier element with a of its plane plates transmitting the cooling effect in contact appropriate.

Another dispensing system is in the publication DE-GM 68 02 114 described, the cooling of drinks in one Beverage cooler takes place, which is an independent container contains. Made of good heat-conducting material Container wall is min. On the floor and / or on the side wall least a cooling element with one of its flat plates brings. Here, too, there is a separate, independent Peltier Element on one wall surface of the container, i.e. another Component attached.

Furthermore, a temperature control device is made of free drinks in PCT / GB 98/00561 be wrote a heat-absorbing, with coolant operated cooling water circuit between neighboring, with a beverage pipe provided metal blocks existing that is. This internal liquid cooling is one of an external cooling device, depending on the temperature purification device that consumes additional energy. In addition, the between the two metal blocks are weary at least without Isolation, so that the Peltier element arrangement between the respective metal blocks and the heat-absorbing hollow body has a largely greater power consumption, whereby  the cooling losses through a second Peltier element arrangement should be balanced.

All known heat exchanger devices that use a Peltier Element arrangement included is common to that for cooling of beverage pipelines ver a relatively high energy needs to be used, often with higher materials is connected, which is a high cooling effort represents.

It is used in all known dispensing systems in which component-designed Peltier elements can be used of finished, separate, independent Peltier elements assumed that in a customized manner one of their cooling flat panels selected and functional Surface walls of the side to be cooled own another contact the permanent component, usually a container, to create a cooling effect there and / or inside.

All Peltier elements used are separate, with egg provided with a controllable voltage source formed components that on smooth, mostly flat surfaces Chen or walls of another also manufactured separately th component are attached and cool it or should heat that the temperature change over the zugehö heat-conductive flat sheets essentially to the in medium located in this component is transferred. It be there is therefore a clear component-related cut between the component or medium to be cooled or heated known heat exchanger device and the Peltier element as a component attached to or therein.  

By fastening the standard Peltier elements on the other hand arise between the flat panels and the tub of the components to be cooled or heated using heat-conducting pastes often only heat transition bridges that provide a quick response from the cooling or component to be heated to the changes in performance of the Prevent Peltier elements and therefore not insignificant represent the loss of energy. When using several Peltier elements between larger, spaced apart th area walls can also from Peltier element too Peltier element already due to low, manufacturing-related Differences in thickness between the flat plates differ Contacts are made with the surface walls.

A problem of using several commercial ones Peltier elements in a Peltier element arrangement thus in the fact that missing contact transitions between the Flat plates of the Peltier elements and the material blocks would are transfer-blocking and heat transfer or heat Withdrawal from the Peltier elements to the flow Hinder medium.

The invention has for its object a bar to specify ge for drinks, their heat exchanger equipment is designed to be suitable for cooling and Heating of at least two strands of beverages leading Lines can be designed to be largely independent can be formed from each other. It is supposed to be the heat rope shear device can be reduced as such. It should also be guaranteed that the dispensing system itself nert, so that it should be easier to handle and lighter as well a more sensitive and quicker reaction in operation  the temperature transfer and setting to the flow mende medium in associated feed lines.

The object is achieved by the features of patent claim 1 solved. In the dispensing system for drinks according to the Oberbe handle of claim 1 is between the blocks of material, which consist of ceramic material with a high coefficient of thermal conductivity, a Numerous thermoelectric PN pairs are available thermally parallel and electrically in series to that of Control or regulation system associated voltage source are arranged switched and with their one-sided PN End areas on the ceramic material of the first block of material as well as with the opposite, opposite PN End areas on the ceramic material of the second material blocks are applied so that connection an unimpeded direct temperature exchange or Heat transfer is present.

Ceramic materials with heat can be used as block material guide number of greater than 140 W / mK can be provided, ins special carbon ceramic material with a go beyond the coefficient of thermal conductivity (approx. 160 W / mK) can be used.

On the material blocks, mounting elements and preferred as spacers are also provided, which in essence are equal to the distances between the PN pairs, the En that of the PN pairs with the respective surfaces of the material blocks are connected, creating a continuous Temperature exchange or heat transfer is present.

The blocks of material are largely cuboid bodies trained, each opposite, smooth  Have surfaces on which the Peltier-PN pairs top are placed in contact with the surface.

At least one heat exchanger device can provide the parallel portions of the two strands in the area the beverage supply lines, especially between the Ge drinking device and the beverage processing unit and / or in the area between the beverage processing unit and be assigned to the beverage dispensers.

The heat exchanger device contains mutually independent Lines, especially pipelines or tubular lei tion-like recesses or passages, preferably such as a loop and / or meandering over and / or arranged side by side in at least one of the material blocks net are that a highly effective penetration of Temperaturän changes on the part of the Peltier PN pair arrangement to the lines gene can be reached.

Temperature-adjustable core zones of a material block can by encapsulating the lines in a box-shaped molded part using liquefied, then solidifying block mate be trained.

The core zones are preferably largely cuboid, compact body.

The entrances and exits of the drinks leading the line The material blocks can be used as flange connections and / or Thread locking units can be formed.  

The beverage dispensers can have taps on the line end represent.

The first block of material is preferably for cooling Ge soak provided and largely fit by one surrounded by trough-shaped or trough-shaped insulation bodies.

Edge area side between the two blocks of material Insulation layers as parts and / or pastes on and be intermediate, in addition to spacers, ins special elastic spacers within the Peltier PN pair arrangement as supporting spacers for the Peltier PN pairs are used.

The second block of material consists of a largely cuboid shaped body and ribs formed on it, in particular cooling fins that are molded onto the base body hen and ending freely, at least on some cooling fins a fan is attached, which sucks in air and against the Ribs flow, so that a laterally directed air the waste heat comes from the area of the heat exchanger tion transported.

The outlets of the beverage lines can be in the Material blocks at least one thermal sensor, in particular a Temperature switch introduced be assigned.

At least one of the temperature sensors can also be in the middle or at appropriate locations on the underside of the first block of material to be appropriate.  

The heat exchanger device can be replaced as a holistic selectable module for various drinks, preferably from Beer, lemonade, fruit juices and / or drinking water or the like. be trained.

The power supply unit for the Peltier PN pair arrangement can preferably contain a controllable voltage source.

The power supply unit for the Peltier PN pair arrangement and the control or regulation system can be so forms that their energy supply optionally with a transformed low DC voltage from grid current (grid wired) or with DC voltage from at least one Battery (without mains cable) and / or with DC voltage Solar cells (even without a power cord) can be carried out.

The control or regulation system can have at least one a thermal sensor, in particular temperature switch supported thermostatic control system for switching on and off as well for setting the power consumption of the Peltier PN pair Be arrangement and / or cause speed changes at least at least one fan.

The electrical supply / signal lines of the Peltier PN Couples and the temperature sensor can be removed from the front space formed by the Paltier-PN pair arrangement be led out between the two blocks of material and lead to the associated thermostatic Control system.  

The power-supplied control devices can essentially from a thermostat with at least one associated one Temperature sensor exist.

The Peltier-PN pair arrangement each have a formwork found groups of Peltier-PN pairs that are in parallel Circuit are supplied with a DC voltage.

The temperature sensor or switch can be used in a power supply Mains power supply unit in both primary electricity path of the power supply unit than in the secondary current path the electrical supply / signal lines of the Peltier PN Pairing must be switched on.

The changeover to change the operating states - cooling to Heating / heating to cooling - can also be carried out externally, with a contactor / relay circuit on the thermostat connected, depending on the specified temperatures, in particular a cooling temperature or in particular one Heating temperature the contacts of the contactor / relay circuit secondary current path with the Peltier PN pair arrangement opens or closes.

Advantageous further developments are in further subclaims described.

The invention is to be illustrated using an exemplary embodiment several drawings are explained in more detail.

Show it:

Fig. 1 is a schematic representation of a two-strand dispensing system for beverages with a heat exchange means which Peltier element-arrangement comprises one,

Fig. 2 is a schematic illustration of the dispensing system of FIG. 1 according to the invention shearing means with a Wärmetau, the PN pair Peltier assembly comprises one,

Fig. 3 is a cross-sectional, schematic representation of egg ner with a Peltier-PN-pair arrangement gen heat exchange means provided along the line II in Fig. 2 with two superposed Getränkerohrleitun,

Fig. 4 is a schematic enlarged view of a section from 11 in Fig. 3,

Fig. 5 is a schematic representation of a circuit diagram for a single-stage thermostatic first control system and

Fig. 6 is a schematic representation of the circuit diagram for an electronic second control system for changing the operating states - cooling to heating / heating to cooling - with external switching.

In Figs. 1 to 6, the reference numbers are maintained throughout for the same parts having the same functions.

In Fig. 1 a dispensing system 1 for two drinks 49 , 50 is shown, the beverage supply device 74 , a Ge beverage processing unit 2 and a provided with a Peltier element arrangement 3 , the first heat exchanger device 4 arranged in the order mentioned immediately before two beverage dispensers 5th contains 6, wherein said Peltier-element assembly 3 ausbil det in the operating state a cold side 7, and a hot side 8 within the heat exchange means 4, and wherein in the beverage supply means 74 and the beverage preparation unit 2 two strands 9, 10 of drinks 49, 50 leading lines 72 , 73 are present.

The first strand 9 contains a carbonization system 11 and both strands 9 , 10 are passed in sections through the Wärmetau shear device 4 . The existing in the Wärmetauschereinrich device 4 , beverages 49 , 50 leading pipes 15 , 16 are embedded in one of the material blocks, in which a temperature sensor 18 is preferably inserted, which is connected in a control or regulating system 19 such that each as required for the drinks 49 , 50 with predetermined temperatures (T1, T2,... Tn), the control or regulating system 19 adjusts the power consumption of the Peltier element arrangement 3 .

The Peltier element arrangement 3 preferably includes ten Peltier elements 23 , 24 , 25 , 26 , 43 , 44 , 45 , 46 , 47 and 48 , which are preferably arranged in a rectangular plan view and via associated electrical supply / signal lines 57 , 58 are connected to the control or regulating system 19 .

The two FIGS. 2, 3 are considered together below. Starting from the dispensing system 1 in FIG. 1, a second serving system 82 according to the invention with a second heat exchanger device 81 is shown schematically in FIG . The dispensing system 82 for beverages 49 , 50 contains a beverage supply device 74 , a beverage processing unit 2 and the second Wämetauscherein device 81 , which also uses the Peltier effect, in which a cold side 7 and a warm side 8 can be formed, and two beverage dispensers 5 , 6 , in which Beverage supply device 74 and the beverage processing unit 2 two strands 9 , 10 of beverages 49 , 50 leading lines 72 , 73 are present, wherein in the beverage preparation unit 2 the strand 9 contains a carbonation system 11 and a section of the two strands 9 , 10 through the heat exchanger means is performed 81 which, as shown in Fig. 3, has a first material block 12 and ei NEN second block of material 13, wherein in at least one of the two blocks of material 12, 13, here in the first Mate rialblock 12 located therein, drinks 49 , 50 leading lines 15 , 16 and a temperature sensor 18 can be integrated t, which is integrated in a control system 19 , by means of which the beverages 49 , 50 can be set at predetermined temperatures as required.

According to the invention, a plurality of thermoelectric PN pairs 79 , 80 are present in the heat exchanger device 81 (see FIGS. 3, 4) between the material blocks 12 , 13 , which consist of ceramic material having a high thermal conductivity, which are thermally parallel and electrically in series the voltage source 64 assigned to the control system 19 are arranged switched and applied with their one-sided PN end regions 78 to the ceramic material of the first material block 12 and with the other, opposite PN end regions 76 , 77 to the ceramic material of the second material block 13 in such a way producing connection are that an unimpeded direct temperature exchange or heat transfer is present.

The heat exchanger device 81 has in Fig. 3 he most material block 12 and a second material block 13 , between which the Peltier-PN pair arrangement 75 is sandwiched. Optionally, the Peltier PN-pair arrangement 75 8 assigned to the cold side 7 of the first material block 12 and the hot side of the second material block 13, wherein block for heat dissipation on the hot side 8 of the second material is provided with elementabgewendeten, ventilated ribs 14. 13 The existing in the heat exchanger device 81 , drinks 49 , 50 leading pipes 15 , 16 are embedded in the first material block 12 , where the pipes 15 , 16 and the first material block 12 form a separate temperature-adjustable core zone 17 , which preferably with a in the Bore 60 zone-bound temperature sensor 18 is connected, which is connected in the control or regulating system 19 in such a way that, depending on the need for the beverages 49 , 50 with predetermined temperatures (T1, T2,... Tn), the control or Control system 19 sets the power consumption of the Peltier-PN pair arrangement 75 .

The two material blocks 12 , 13 in FIGS. 2, 3 and 4 can consist of ceramic material, in particular carbon ceramic. A variety of thermoelectric PN pairs, in particular bismuth / tellurium PN pairs, representatively z. B. the PN pairs 79 , 80 , which are thermally connected in parallel with respect to their end regions 76 , 77 and 78 and electronically in series by means of the supply lines 57 , 58 as a Peltier PN pair arrangement 75, preferably to a controllable voltage source 64 , with their one-sided PN solder joints 78 (PN end areas) connected to the ceramic material of the first material block 12 using high technology, and with the other, opposite PN solder joints 76 , 77 (PN end areas) after introducing corresponding spacers 32 using high technology to the ceramic material of the second Mate rialblocks 13 may be applied to establish a connection.

In Figs. 2, 3 instead of the known Peltier-element assembly 3 is a Peltier-PN-pair arrangement 75 shown.

By dispensing with individual element installation and thus on their ceramic plates, the heat-blocking transitions between the ceramic plates of the independent Peltier elements 23 to 26 , 43 to 48 and the material blocks 12 , 13 are largely avoided and the heat transfer or heat deprivation by the PN -Pairs 79 , 80 of the Peltier-PN pair arrangement 75 from the beverage 49 , 50 flowing through significantly improved. As a result, temperature changes in the PN end regions 76 , 77 and 78 are passed on in a shorter time, that is to say that the heat exchanger device 81 can be made considerably more sensitive to reaching predetermined beverage temperatures because the beverage temperatures then largely correspond to those in the thermostatic control systems 19 , 71 correspond to a set temperature T1, T2.

The temperature sensor 18 in FIG. 2 is connected via the electrical supply / signal line 59 to the control or regulating system 19 . A temperature switch, preferably a bimetal switch or capillary controller, can be used as the temperature sensor 18 for direct switching of the power consumption of the Peltier-PN pair arrangement 75 . The use can be carried out by a thermally highly conductive attachment of the feed medium to the first material block 12 by means of a guide holder or by insertion into a bore 60 , as shown in FIG. 3.

The carbonation system 11 is designed for intermediate beverage storage and is preferably connected to the valve and pump assemblies 53 in the line 10 . The carbonation system 11 mainly includes a CO ₂ bottle 54 with valve fittings, a beverage tank 56 for the intermediate storage of the carbonated beverage 49 and a carbonization-carrying out CO ₂ injection device 55 .

The heat exchanger device 81 can contain the two strands 9 , 10 containing sections both before and after the Ge beverage preparation unit 2 integrated. For example, in the presence of only one beverage connection or a beverage storage container, e.g. B. 51, due to associated fittings and pipes (not shown) causes the first beverage supply line 72 to branch to the first and second beverage supply lines 72 , 73 and thus lead to the formation of the two strands 9 , 10 , which are the heat exchangers in the area in front of the beverage preparation unit 2 direction 81 can be introduced in sections pulling through, which can be used primarily for cooling the drinks 49 . A beverage 49 can thus be removed from the respective beverage dispensers 5 , 6 both with and without carbon dioxide.

Each strand 9 , 10 includes a ends dispenser tap 6 , 5 as a beverage dispenser.

The drinks 49 , 50 can be of the same type as well as liquids mixed with different substances. Beer, lemonade, fruit juices and / or drinking water can in particular be used as drinks 49 , 50 . The latter can be obtained as cooled, still and / or sparkling table water after passing through the dispensing system 82 . When designing the dispensing system 82 for only one supplied drink 49 , one of the two storage containers 51 , 52 in the drink supply device 74 can thus be saved and only one drink storage container 51 or a drink connection, preferably for table water or soda water, a connection to the drinking water supply network can be provided, whereby the supplied beverage 50 after passing through the beverage preparation unit 2, both in still juicy and bubbly form, can be taken from the respective beverage dispensers 5 , 6 .

Preferably, the diameter and the length of the lines 15 , 16 in the first block of material 12 in FIG. 3 are dimensioned in such a way that each contains a supply of beverages 49 , 50 which correspond to a dispensing unit, e.g. B. can correspond to the volume of a cup.

In Figs. 3, 4, the first block of material 12 is formed as quaderför miger body having a Peltier PN pairs 79, 80 facing, smooth surface 22 on which the Peltier PN-pair arrangement 75 in section to see is. The second block of material 13 also has a smooth surface 37 . The contact between the two surfaces 22 , 37 and the Peltier-PN pairs 79 , 80 can be made by high-tech connec tion.

The first block of material 12 contains the two lines 15 , 16 . The pipes 15 , 16 are arranged vertically one above the other in FIG. 3, but, as shown in FIG. 1, can also be arranged next to one another and offset one above the other. The beverage pipes 15 , 16 can be loop-like and / or meandering in the transverse extent. The first block of material 12 is preferably formed by encapsulating the beverage pipelines 15 , 16 in a cuboid shaped part by means of liquid material. The inputs 27 , 28 and the outputs 29 , 30 of the beverage pipeline conditions 15 , 16 can be designed as flange connections or threaded closure units.

A trough-shaped insulation body 31 surrounds the cuboid-shaped first block of material 12 in a fit-fitting manner. On the edge area side between the two material blocks 12 , 13 , insulation intermediate layers are also arranged and / or interposed as solid or elastic parts or in the form of pastes, in particular also to serve as supporting spacers 32 for the Peltier-PN pairs 79 , 80 .

The second block of material 13 consists of a largely qua derformen basic body 21 and formed from Verrip ping, in particular cooling fins 14 , which project away from the base body 21 and end freely.

A fan 20 is attached to some of the cooling fins 14 , which sucks in air 34 from outside the heat exchanger device 81 and allows it to flow against the ribs 14 . A since Licher air outlet 35 transports the waste heat from the loading area of the heat exchanger device 81 . The fan 20 is placed on the ribs 14 of the second material block 13 in such a way that the inflowing or outflowing air flows 34 , 35 each directly meet the ribs, among which a large part of the Peltier-PN pairs 79 , 80 are located. Vorzugswei se, the second block of material 13 can be provided with a black surface, so that the heat can be quickly given off here.

The beverage pipelines 15 , 16 in the first block of material 12 preferably run one above the other with respect to the Peltier-PN pair arrangement 75 . The temperature sensor 18 arranged in FIG. 3 is optionally arranged in the area of the outlets 29 , 30 of the pipes 15 , 16 . The sandwich-like formation of the material blocks 12 , 13 and the intermediate Peltier-PN pair arrangement 75 is inter alia by several, for. B. can be reached by means of the screw connections 38 , 40 indicated with the reference numerals, the screw connections being carried out from the side of the second block of material 13 .

The first block of material 12 consists of the core zone 17 and of the insulation body 31 , which surrounds the core zone with the beverage pipelines 15 , 16 embedded therein in the manner of a trough. Between the smooth surfaces 22 , 37 are the Peltier-PN pair arrangement 75 and, if appropriate, a plurality of spacers 32 which are intended to protect the Peltier-PN pairs 79 , 80 against unbalanced loading. The second material block 13, with its base body 21 and the associated ribs 14 , is fastened in a sandwich-like manner by means of the screw connections 38 , 40 , which are representative of all screw connections. The screw connections 38 , 40 hold the Peltier-PN pairs 79 , 80 in contacting manner on both sides. On the ribs 14 , the fan 20 is optionally attached, which can provide the air 34 for the waste heat transport from the Verrippun conditions 14 .

In Fig. 5 is a schematic representation of a circuit diagram for the provided with a mains-based power supply 64 , single-stage thermostatic first control system 19 , consisting essentially of a most thermostat 63 and the associated temperature sensor 18 , shown. The Peltier-PN pair arrangement 75 has Peltier-PN pairs 79 , 80 , which are interconnected, and further PN pairs, which are supplied in the secondary current path. In the secondary current path, the first thermostat 63 is connected to the temperature sensor 18 , in particular a temperature switch. The temperature switch 18 can also be integrated in the primary current path. A suitable switching hysteresis can be selected depending on the requirements for constant temperature.

Switching between the cooling / heating and heating / cooling modes of operation can be carried out externally with the schematic diagram of the circuit diagram for an electronic second control system 71 shown in FIG. 6 for changing the operating states - cooling to heating / heating to cooling - which the first control system 19 replaced. In particular for the disinfection of the beverage pipelines 15 , 16 , the electronic second control system 71 shown in FIG. 6 can be used. It can be used in particular to preset the cooling temperature T ₁ with the path X21 shown on the left in FIG. 6 and in particular the heating temperature T ₂ with the path X22 on the right in FIG. 6. As a result, conditions are also placed on the switching point, the accuracy and the hysteresis of the second thermostat 68 (N ₁ , N ₂ ) in accordance with the temperature presettings. At the second thermo stat 68 (N ₁ , N ₂ ), a contactor / relay circuit 65 is connected, which, depending on the specified temperatures T ₁ = + 6 ° C or T ₂ = + 80 ° C, the contacts K1 or K2 associated contactor opens or closes in the secondary current path provided with the Peltier-PN pair arrangement 75 .

Instead of the pipes 15 , 16 , the first block of material 12 can have tubular liquid-conducting and -sealed recesses or passages as lines which are shaped similarly to the pipes 15 , 16 . The drinks ke 49 , 50 then flow in the tubular recesses instead of in the pipes 15 , 16 . It is expedient that the inputs and outputs 27 , 28 and 29 , 30 of both the connections or pipe connections are also formed as connecting pieces.

Preferably, the heat exchanger device 81 is designed as an independent assembly. Instead of the connecting piece, connections (inputs and outputs 27 , 28 and 29 , 30 ) of the heat exchanger device 81 and the corresponding connections to the beverage dispensers 5 , 6 or to the beverage preparation unit 2 quick-release couplings, quick-release connections (not shown) may be present, to enable quick replacement if necessary, preferably for quick cleaning.

When selecting the material surrounding the pipelines 15 , 16 or the beverages 49 , 50 , it is particularly expedient to have a sensitive penetration of the effective range of the Peltier-PN pair arrangement 75 to the conduits 15 , 15 leading the beverages 49 , 50 , 16 to achieve, wherein the pipes 15 , 16 may preferably consist of block-like ceramic material and / or plastic, which in particular meet the medical requirements or standards.

The invention not only opens up the possibility of a we Significant downsizing of the dispensing systems and a reduction to bring about the respective energy consumption, son can significantly expand their area of application, especially in the household, in public institutions and can also be used in industrial plants.

Reference list

1

first bar system

2nd

Beverage processing unit

3rd

Peltier elements arrangement

4th

first heat exchanger device

5

first beverage dispenser

6

second beverage dispenser

7

Cold side

8th

Hot side

9

first strand

10th

second strand

11

Carbonization plant

12th

first block of material

13

second block of material

14

Ribbing

15

first pipeline

16

second pipeline

17th

Core zone

18th

Temperature sensor

19th

first control system

20th

Fan

21

Basic body

22

first smooth surface

23

first Peltier element

24th

second Peltier element

25th

third Peltier element

26

fourth Peltier element

27

first entrance

28

second entrance

29

first exit

30th

second exit

31

Insulation body

32

Spacers

34

Air intake

35

Air outlet

36

Temperature sensor

37

second smooth surface

38

first screw connection

40

second screw connection

43

fifth Peltier element

44

sixth Peltier element

45

seventh Peltier element

46

eighth Peltier element

47

ninth Peltier element

48

tenth Peltier element

49

first liquid

50

second liquid

51

first reservoir

52

second storage container

53

Valve and pump assemblies

54

CO ₂

-Bottle

55

CO ₂

-Injection device

56

CO ₂

- drink tank

57

first electrical supply / signal line

58

second electrical supply / signal line

59

third electrical supply / signal line

60

drilling

63

first thermostat

64

Power supply

65

relay

68

second thermostat

71

second control system

72

first beverage supply line

73

second beverage supply line

74

Beverage dispenser

75

Peltier PN pair arrangement

76

first PN end range

77

second PN end range

78

third PN end range

79

first PN pair

80

second PN pair

81

second heat exchanger device

82

second bar system
T1, T2 temperature
K1, K2 contact of a contactor
F1 thermostat
N1, N2 thermostat

Claims (25)

1. Dispensing system for beverages, containing a beverage supply device, a beverage processing unit and at least one heat exchanger device using the Peltier effect, in which a cold side and a hot side can be formed, and at least one beverage dispenser, with at least two strands of drinks in the beverage supply device and the beverage processing unit leading lines are present, wherein in the beverage processing unit at least one of the strands contains a carbonation system and a section of the two strands is guided through the heat exchanger device, which has a first material block and a second material block, beverages located in at least one of the material blocks Leading lines are and at least one temperature sensor can be integrated, which is integrated in a control or regulation system, by means of which beverages are used as required predetermined temperatures are adjustable, characterized in that between the material blocks ( 12 , 13 ), which consist of ceramic material with a high thermal conductivity, a large number of thermoelectric PN pairs ( 79 , 80 ) are present, the thermally parallel and electrically in series the voltage source ( 64 ) assigned to the control or regulating system ( 19 , 71 ) are arranged switched and with their one-sided PN end areas ( 78 ) to the ceramic material of the first material block ( 12 ) and with the other side, opposite PN end areas ( 76 , 77 ) are applied to the ceramic material of the second material block ( 13 ) in such a way that a connection is established in such a way that there is an unimpeded direct temperature exchange or heat transfer. 2. dispensing system according to claim 1, characterized, that as block material ceramic materials with heat guide number greater than 140 W / mK are provided, wherein especially carbon ceramic material with an additional outgoing thermal conductivity, about 160 W / mK, can be used. 3. Dispensing system according to claim 1 or 2, characterized in that on the material blocks ( 12 , 13 ) support elements and spacers ( 32 ) are provided which are essentially the same as the distances between the PN pairs ( 79 , 80 ), wherein the end regions ( 76 , 77 ; 78 ) of the PN pairs ( 79 , 80 ) with the respective surfaces ( 22 , 37 ) of the material blocks ( 12 , 13 ) are connected. 4. Dispensing system according to claim 3, characterized in that the material blocks ( 12 , 13 ) of the Wärmetauschereinrich device ( 81 ) are designed as largely cuboid bodies, each having an opposing, smooth surface ( 22 ; 37 ) on which the Peltier -PN- pairs ( 79 , 80 ) are placed on the surface. 5. Dispensing system according to at least one of the preceding claims, characterized in that the heat exchanger device ( 81 ) lines ( 15 , 16 ), in particular pipes, which are preferably de rart loop-like and / or meandering one above the other and / or arranged side by side that a highly effective penetration of the temperature changes on the part of the Peltier PN pair arrangement ( 75 ) to the lines ( 15 , 16 ) can be achieved. 6. Dispensing system according to at least one of the preceding claims, characterized in that between the two blocks of material ( 12 , 13 ) Isolati onsüberlagen as fixed and / or elastic parts and / or pastes up and between, too zuzug to spacers within the Peltier -PN-pair arrangement ( 75 ) also serve as supporting spacers ( 32 ) for the Peltier-PN pairs ( 79 , 80 ). 7. Dispensing system according to at least one of the preceding claims, characterized in that the first block of material ( 12 ) is surrounded by a largely trough-shaped or trough-shaped insulation body ( 31 ). 8. Dispensing system according to at least one of the preceding claims, characterized in that the heat exchanger device ( 81 ) contains at least two lines ( 15 , 16 ) in the first block of material ( 12 ), which is seen essentially for cooling the drinks ( 49 , 50 ) . 9. Dispensing system according to at least one of the preceding claims, characterized in that temperature-adjustable core zones ( 17 ) of a block of material ( 12 ) by encapsulating the lines ( 15 , 16 ) in a preferably box-shaped molded part by means of liquefied, then solidifying block material. 10. Dispensing system according to at least one of the preceding claims, characterized in that the core zones ( 17 ) are preferably largely cuboid-shaped, compact body. 11. Dispensing system according to at least one of the preceding claims, characterized in that the outputs ( 29 , 30 ) of the lines ( 15 , 16 ) in the material blocks ( 12 ) at least one thermal sensor ( 18 ), in particular a temperature switch is introduced zugeord net. 12. Dispensing system according to at least one of the preceding claims, characterized in that at least one temperature sensor is preferably attached in the center underside of the first material block ( 12 ). 13. Dispensing system according to at least one of the preceding claims, characterized in that the second block of material ( 13 ) consists of a largely rectangular base body ( 21 ) and ribs formed thereon, in particular cooling fins ( 14 ), which protrude from the base body ( 21 ) and end freely, with at least one fan ( 20 ) attached to some cooling fins ( 14 ), which draws in air ( 34 ) and flows against the ribs ( 14 ), so that a laterally directed air outlet ( 35 ) removes the waste heat from the area of the heat exchanger device ( 81 ) transported. 14. Dispensing system according to at least one of the preceding claims, characterized in that the power supply unit ( 64 ) for the Peltier-PN pair arrangement ( 75 ) and the control and regulating system ( 19 , 71 ) is designed such that the energy thereof supply can be carried out either with a transformed low DC voltage from mains current (connected to the mains cable), with DC voltage from batteries (without mains cable) and / or from solar cells (without mains cable). 15. Dispensing system according to at least one of the preceding claims, characterized in that the power supply unit for the Peltier-PN pair arrangement ( 75 ) contains a controllable voltage source. 16. Dispensing system according to at least one of the preceding claims, characterized in that the Peltier-PN pair arrangement ( 75 ) each has interconnected groups of Peltier-PN pairs ( 79 , 80 ), which supplies a DC voltage in a parallel circuit are. 17. Dispensing system according to at least one of the preceding claims, characterized in that the power-supplied control devices ( 19 , 71 ) essentially contain at least one thermostat ( 63 , 68 ) with at least one associated temperature sensor ( 18 ). 18. Dispensing system according to at least one of the preceding claims, characterized in that the control or regulating system ( 19 , 71 ) is based on at least one thermal sensor, in particular a temperature switch ( 18 ) thermostatic control system preferably for switching on and off and on Position of the power consumption of the Peltier-PN pair arrangement ( 75 ) and / or changes in speed of at least one fan ( 20 ). 19. Dispensing system according to at least one of the preceding claims, characterized in that the electrical supply / signal lines ( 57 , 58 , 59 ) of the Peltier-PN pair arrangement ( 75 ) and the temperature sensor ( 18 ) on the end face from that of the Peltier -PN-pair arrangement ( 75 ) formed between the two material blocks ( 12 , 13 ) are led out and lead to the associated control system, in particular to the thermostatic control system ( 19 , 71 ). 20. Dispensing system according to at least one of the preceding claims, characterized in that in a power supply unit ( 64 ) based on mains current, the temperature switch ( 18 ) both in the primary current path of the power supply unit ( 64 ) and in the secondary current path of the electrical supply / signal lines of the Peltier -PN pair Anodnung ( 75 ) is a switchable. 21. Dispensing system according to at least one of the preceding claims, characterized in that a switchover for changing the operating states - cooling to heating and heating to cooling - can be carried out externally, a contactor / relay circuit ( 65 ) being connected to the thermostat ( 68 ) which, depending on the given temperatures, in particular a cooling temperature or in particular a heating temperature, opens or closes the contacts of the contactor / relay circuit ( 65 ) and thus the secondary current path with the Peltier-PN pair arrangement ( 75 ). 22. Dispensing system according to at least one of the preceding claims, characterized in that the lines ( 15 , 16 ) in the material blocks ( 12 , 13 ) are optionally both pipes ( 15 , 16 ) and lines which represent tubular liquid-conducting recesses or passages Which are similar to the pipelines ( 15 , 16 ) are designed to extend, the pipelines ( 15 , 16 ) preferably made of block-like ceramic and / or plastic. 23. Dispensing system according to at least one of the preceding claims, characterized in that at least one heat exchanger device ( 81 ) the parallel sections of the two strands ( 9 , 10 ) in the region of the two beverage supply lines ( 72 , 73 ), in particular between the beverage supply device ( 74 ) and the beverage preparation unit ( 2 ) and / or in the area between the beverage preparation unit ( 2 ) and the beverage dispensers ( 5 , 6 ). 24. Dispensing system according to at least one of the preceding claims, characterized in that the inputs ( 27 , 28 ) and the outputs ( 29 , 30 ) of the lines ( 15 , 16 ) of the material blocks ( 12 , 13 ) to the closable pipes of the beverage dispenser ( 5 , 6 ) or beverage processing unit ( 2 ) designed as a flange, Ge thread closure units and / or are provided with quick-release couplings. 25. Dispensing system according to at least one of the preceding claims, characterized in that the heat exchanger device ( 81 ) is designed as a holistic, interchangeable module for various beverages ( 49 , 50 ), preferably beer, lemonade, fruit juices and / or drinking water.